Internal-combustion engine.



W'. RUSSELL. NTBRNAL'coMBUsTIoN ENGINE.

APPLIGATION FILED DEO.1 4, 1911.

i Patented Sept. 9, 1913.

W. RUSSELL.

INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED DBG.14,1911.

1,072,777. Patented sepc.9,1913.

2 SHEETS-SHEBT 2.

1 S14/ue uhu n'r raton.

WHITMAN RUSSELL, OF GREENFIELD, MASSACHUSETTS.

INTERNAL-connessioni ENGINE.

To all whom t may concern.'

Be it known that I, WHITMAN RUSSELL, a

citizen of the United States, residing at Greenfield, in the county-of Franklin and State of Massachusetts, have invented cern tain 'new and useful Improvements in Internal-Combustion Engines; and I do hereby declare the following t-o be a full, clear, and exact description of the invention, such as will. enable others skilled in the art to which it appertains to make and use the same. v

My invention-relates to improvements in internal combustion engines, and it consists in the constructions, combinations and arrangements herein described and claimed.

An object of my invent-ion is to provide Van improved valve gear adapted to operate efficiently with'an elimination of wasteful leakage without the employment of troublesome packings.

A further object of my invention is to provide. a simple and durable cylindrical valve gear, which will be efiiciently protected from r t-he deteriorating and distorting effects of the heat of combustion, thereby insuring a uniform and efficient operation under all practical conditions.

In the accompanying drawings, forming a part ot' this application, and in which similar reference symbols indicate corresponding parts in the several views :-Figure 1 is a vertical, axial section, illustrating one em bodiment of my invention; Fig. 2 is a secn tion on the line 2--2 of Fig. 1; and, Fig. 3 is a section on the line 3-3 of Fig. 1.

Referring to the drawings, 1 indicates the water-cooled cylinder of an internal combustion engine mounted on a closed crank casing 2, and provided with the usual piston 3, connecting rod 4, crank 5, and engine shaft 6. A cylinder head 7 is provided-with an axially-extending ange 8 spaced from the periphery of the water-cooled cylinder' 1 and closely engaging an annular shoulder 9 on the latter to provide a closed annular chamber about the outer wallof said cylinder, registerincr. circumferential admission ports 10 and ex iaust ports 11 extending through said flange and cylinder. The head 7 is firmly clamped against the end of the cylinder by a series of bolts extending axially specification of Letters Patent.

Patented Sept. 9,1913. y

Application led Becembcr 14e, 1911. Serialy No. 665,872.

through said head and the cylinder wall;` as shown in the drawings. A cylindrical valve 12 1s rotatably mounted within such chamber 5.3 on the outer wall of the water-cooled cylinder 1, and provided with a single port 13 for controlling the admission port 10 and exhaust port 11; said cylindrical valve being provided with an annular gear face 14 inesh- G0 ing with a gear 15 on a counter-shaftA 16'. A drive shaft 17 is shown actuatingly connected to the engine shaft 6 and countershaft 16, respectively, by intermeshing spiral or skew gears 18 and bevel gears19,said 65 drive and countershafts being journaledi. in i a hollow casing 2O which incloses the gears 15 and 19, and is secured to the ilange 8. 2

I have illustrated my invention appliedto a four-cycle engine, in which the valve 12iis 70 driven at one half the rotative speed of the engine shaft 16, Fig. 3 showing the position of the valve at the beginning of the power stroke. v

The drawings show my invention and all operating parts, and omit all illustration ofthe usual igniting devices, and pipe connections. The cylindrical valve 12' is rotated through 90 during each stroke of the eno'ine ypiston 3, and the operation will be un erstood without further description thereof.

From the above description, it will be clear that' my invention provides an improved construction adapted to eliminate all wasteful leakage without the necessity of employing troublesome packings, and in which the valve4 is protected from the deteriorating and distorting eli'ects of the heat of combustion; thereby providing a durable construction adapted for etiicient and certain operation under all practical conditions. a

' My invention is adapted for advantageous application to multi-cylinder engines by extending the counter-shaft 16 and securing at suitable positions thereon duplicategears 15 for driving the cylindrical valves of the several cylinders. f

I have illustrated and described preferred and satisfactory constructions, but changes could be made within the spirit and scope of my invention.

I claim In an internal combustion engine, the combination of a water-'cooled cylinder having an exterior annularshoulder provided with chamber rotatably mounted on the outer wall a cylindrical peripheral Wall, a cylindrical of said Water-c0oled cylinder. v lo head having a cylindrical lane adapted to In testimony whereof, I affix my signature, fit slidably over said periphera Wall to proin presence of two Witnesses. y

vide e closed annular chamber about said v WHITMAN RUSSELL. water-cooled cylinder, means for clampn Witnesses:

said head rmly against the end of sai RAY F. GILKEsoN,

cylinder, and a cylindrical valve Within Such 'MARION E. HANDFORTH. 

